I agree with these guys. I used to use a 3 mil with a 7 mil farmer john, and that worked okay, but now I use a 8/7, and I am nice and toasty even on long dives.
Mike, any luck selling those regs? I think you would do better by lowering the price a few dollars than by going to ebay. What did Woods offer you? I need some regs for my twin 80s, but I may want to try Scubapro or another brand this time. I have been using DR 2500s for 9 years and it is a great reg though.
Jim